Four Cards (24) is a popular card game in China. It is often played as a competition or to develop basic math skills. 4 cards are dealt and the player orders them and 3 math operators to equal 24.

Four Cards is available on Android Market for free.

How To Play:

To play, drag the cards and operators (add, subtract, multiply, divide) to the chosen positions. Each card can only be used once, but math operators can be repeated. Only whole numbers zero or greater can be calculated.

Tapping on a card or operator places it in the next open location from left to right. Tapping on a card or operator in the equation removes that item.